Update docs

README.md

@@ -144,7 +144,7 @@ It must be one of the strings `GET`, `HEAD`, `POST`, `PUT`, `PATCH`, `DELETE` or
 
 The body of the API call.
 
-`redux-api-middleware` uses the [`Fetch API`](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) to make the API call. `[RSAA].body` should hence be a valid body according to the the [fetch specification](https://fetch.spec.whatwg.org). In most cases, this will be a JSON-encoded string or a [`FormData`](https://developer.mozilla.org/en/docs/Web/API/FormData) object.
+`redux-api-middleware` uses the [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) to make the API call. `[RSAA].body` should hence be a valid body according to the [fetch specification](https://fetch.spec.whatwg.org). In most cases, this will be a JSON-encoded string or a [`FormData`](https://developer.mozilla.org/en/docs/Web/API/FormData) object.
 
 #### `[RSAA].headers`
 
@@ -166,7 +166,7 @@ It may also be a function taking the state of your Redux store as its argument,
 
 #### `[RSAA].options`
 
-The fetch options for the API call. See [node-fetch](https://github.com/bitinn/node-fetch#options) for more information.
+The fetch options for the API call. See [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) for more information.
 
 It is usually an object with the options keys/values. For example, you can specify a network timeout for node.js code
 in the following way.
@@ -586,7 +586,7 @@ The optional `[RSAA].headers` property MUST be a plain JavaScript object or a fu
 #### `[RSAA].options`
 
 The optional `[RSAA].options` property MUST be a plain JavaScript object or a function. In the second case, the function SHOULD return a plain JavaScript object.
-The options object can contain any options supported by [node-fetch](https://github.com/bitinn/node-fetch#options).
+The options object can contain any options supported by the [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API).
 
 #### `[RSAA].credentials`